/*
 Copyright (c) 2013, Francisco Suárez-Ruiz
 All rights reserved.

 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are met:
 * Redistributions of source code must retain the above copyright
 notice, this list of conditions and the following disclaimer.
 * Redistributions in binary form must reproduce the above copyright
 notice, this list of conditions and the following disclaimer in the
 documentation and/or other materials provided with the distribution.
 * Neither the name of the <organization> nor the
 names of its contributors may be used to endorse or promote products
 derived from this software without specific prior written permission.

 THIS SOFTWARE IS PROVIDED BY Francisco Suárez <email> ''AS IS'' AND ANY
 EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 DISCLAIMED. IN NO EVENT SHALL Francisco Suárez <email> BE LIABLE FOR ANY
 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.*/

#ifndef UDPREADER_H_
#define UDPREADER_H_

#include <iostream>
#include <string.h>
#include <vector>
#include <algorithm>

//includes for socket use
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <netdb.h>

#define BUFFSIZE 255  //size of buffer to hold topic messages
#define BYTES_IN_FLOAT 4	//A float number has 4 bytes

using namespace std;

class UDPreader {
public:
	UDPreader(int port_no);
	virtual ~UDPreader();
	int create();
	int close_socket();
	int bind_socket();
	const std::vector<float> & receive();

private:
	char buffer[BUFFSIZE+1];          //buffer which holds incoming message
	unsigned int serverlen; // size of server structure
	unsigned int clientlen; // size of server structure
	int sockfd; // socket file descriptor
	int recv_size; // size of the received buffer
	int port; // port to write
	std::vector<float> data_vector;
	struct sockaddr_in server; 		// Server address structure (This computer)
	struct sockaddr_in client;	      //client address structure
};
#endif /* UDPREADER_H_ */
